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CellJet.hh
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CellJet.hh
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#ifndef CELLJET_HH
#define CELLJET_HH
#include "CellJetEvent.hh"
namespace SpartyJet {
namespace Pythia8 {
//**************************************************************************
// SingleCell class.
// Simple helper class to CellJet for a cell and its contents.
class SingleCell {
public:
// Constructor.
SingleCell(int iCellIn = 0, double etaCellIn = 0., double phiCellIn = 0.,
double eTcellIn = 0., int multiplicityIn = 0) : iCell(iCellIn),
etaCell(etaCellIn), phiCell(phiCellIn), eTcell(eTcellIn),
multiplicity(multiplicityIn), canBeSeed(true), isUsed(false),
isAssigned(false) {}
// Properties of cell.
int iCell;
double etaCell, phiCell, eTcell;
int multiplicity;
bool canBeSeed, isUsed, isAssigned;
} ;
//**************************************************************************
// SingleCellJet class.
// Simple helper class to CellJet for a jet and its contents.
class SingleCellJet {
public:
// Constructor.
SingleCellJet(double eTjetIn = 0., double etaCenterIn = 0.,
double phiCenterIn = 0., double etaWeightedIn = 0.,
double phiWeightedIn = 0., int multiplicityIn = 0,
Vec4 pMassiveIn = 0.) : eTjet(eTjetIn), etaCenter(etaCenterIn),
phiCenter(phiCenterIn), etaWeighted(etaWeightedIn),
phiWeighted(phiWeightedIn), multiplicity(multiplicityIn),
pMassive(pMassiveIn) {}
// Properties of jet.
double eTjet, etaCenter, phiCenter, etaWeighted, phiWeighted;
int multiplicity;
Vec4 pMassive;
} ;
//**************************************************************************
// CellJet class.
// This class performs a cone jet search in (eta, phi, E_T) space.
class CellJet {
public:
// Constructor.
CellJet(double etaMaxIn = 5., int nEtaIn = 50, int nPhiIn = 32,
int selectIn = 2, int smearIn = 0, double resolutionIn = 0.5,
double upperCutIn = 2., double thresholdIn = 0.) : etaMax(etaMaxIn),
nEta(nEtaIn), nPhi(nPhiIn), select(selectIn), smear(smearIn),
resolution(resolutionIn), upperCut(upperCutIn),
threshold(thresholdIn) { }
// Analyze event.
bool analyze(CellJetEvent& event, double eTjetMinIn = 20.,
double coneRadiusIn = 0.7, double eTseedIn = 1.5);
// Return info on results of analysis.
int size() const {return jets.size();}
double eT(int i) const {return jets[i].eTjet;}
double etaCenter(int i) const {return jets[i].etaCenter;}
double phiCenter(int i) const {return jets[i].phiCenter;}
double etaWeighted(int i) const {return jets[i].etaWeighted;}
double phiWeighted(int i) const {return jets[i].phiWeighted;}
double multiplicity(int i) const {return jets[i].multiplicity;}
Vec4 pMassless(int i) const {return jets[i].eTjet * Vec4(
cos(jets[i].phiWeighted), sin(jets[i].phiWeighted),
sinh(jets[i].etaWeighted), cosh(jets[i].etaWeighted) );}
Vec4 pMassive(int i) const {return jets[i].pMassive;}
double m(int i) const {return jets[i].pMassive.mCalc();}
vector<SingleCellJet> get_jets() {return jets;}
// Provide a listing of the info.
void list(ostream& os = cout);
private:
// Properties of analysis.
double etaMax;
int nEta, nPhi, select, smear;
double resolution, upperCut, threshold;
double eTjetMin, coneRadius, eTseed;
// Outcome of analysis: ET-ordered list of jets.
vector<SingleCellJet> jets;
};
} // end namespace Pythia8
} // namespace SpartyJet
#endif

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